## Math Problem Statement

How long will it take money to quadruplequadruple if it is invested at the following rates? (A) 6.56.5% compounded semiannuallysemiannually (B) 9.59.5% compounded semiannuallysemiannually

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Compound Interest

Exponential Growth

Logarithms

### Formulas

A = P(1 + r/n)^(nt)

t = ln(4) / [n * ln(1 + r/n)]

### Theorems

Compound Interest Formula

Logarithmic Transformation

### Suitable Grade Level

Grades 10-12

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